High-safety complex lift with electronic collective control

ABSTRACT

Improvements in elevators operated in banks and also individually, in which the equipment may be adapted for the various requirements of apartment houses, hotels, office buildings and business establishments, by the addition of components to a basic control system which in any event will be relatively simple and inexpensive. When operated bankwise, the control system assures a desirable distribution of the workload, and also accommodates full loading of any individual elevator. The individual elevators have improved safety locks, improved brakes, improved sheave construction, improved speed control, improved load-limiting mechanism, and improved guide structure.

United States Patent [191 Balint et al.

[ June 28, 1974 HIGH-SAFETY COMPLEX LIFT WITH ELECTRONIC COLLECTIVE CONTROL Inventors: Istvan Balint; Sandor Baumann,

both of Budapest, Hungary Assignee: Licencia Talalmanyokat Ertekesito Vallalat, Budapest, Hungary Filed: Mar. 13, 1972 App]. No.: 234,004

Foreign Application Priority Data Mar. ll, 197] Hungary LI 2l7 us. Cl 187/29 R Int. Cl B6611 1/18 Field of Search 187/29 References Cited UNITED STATES PATENTS White 187/29 Lund et al. l87/29 4/l968 lnuzuka et al. 187/29 5/1969 Hall etal. l87/29 Primary Examiner-Robert K. Schaefer Assistant Examiner-W. E. Duncanson, Jr. Attorney, Agent, or Firm-Young & Thompson ABSTRACT Improvements in elevators operated in banks and also individually, in which the equipment may be adapted for the various requirements of apartment houses, hotels, office buildings and business establishments, by the addition of components to a basic control system which in any event will be relatively simple and inexpensive. When operated bankwise, the control system assures a desirable distribution of the workload, and also accommodates full loading of any individual elevator. The individual elevators have improved safety locks, improved brakes, improved sheave construction, improved speed control, improved load-limiting mechanism, and improved guide structure.

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PATENTEDJum 1914 sum 18 or 21 PATENTEDJUNZB I974 sum 19 or 21 Fig. 23 

1. A bank of elevators having a common control system for receiving calls from elevator users and for directing an available elevator of said bank to stop at the floor from which a said call was placed, said bank of elevators having up and down calling buttons at each of a plurality of said floors, said control system comprising direction registers, and for each floor separate signal storages for the up and down directions and also a story Tracer, first input terminals of said signal storages for the up and down directions corresponding to the same floor being connected with each other for each floor, second input terminals of said signal storages of the up direction for each floor being connected with the second input terminals of said signal storages of the up direction of each other floor, second input terminals of said signal storages of the down direction for each floor being connected with the second input terminals of said signal storages of the down direction of each other floor, said storages having output contacts connected in parallel to said direction registers, both signal storages of the up and down directions corresponding to a selected floor having input contacts connected in parallel to their associated said calling buttons, said story tracers having series contacts for each floor which are connected with signal acceptance hindering terminals of said storages corresponding to the respective floors as well as to terminals of said signal storages for sensing the stored signals, each said story tracer having a sensing element with storage character connected both to said signal storages and to said direction registers. 